feat(delivery): replace deliveryEditorSlice with automat and add PDF/text attachment handling

- replace Redux deliveryEditorSlice with deliveryEditorAutomat using automat
- add Attachment and AttachmentList components in Kopfdaten
- extract PDF text via pdftotext-wasm and render PDF thumbnails with pdfjs-dist
- add TextEditorDialog to view and edit extracted text files (preformatted monospace, no wrap)
- configure Vite server.fs.allow for pdftotext.wasm

src/components/manifest/index.js

@@ -3,6 +3,9 @@ export { default as ManifestForm } from './ManifestForm';
 export { default as ManifestHeader } from './ManifestHeader';
 export { default as ManifestLines } from './ManifestLines';
 export { default as ManifestFormLine } from './ManifestFormLine';
+export { default as Attachment } from './Attachment';
+export { default as AttachmentList } from './AttachmentList';
+export { default as TextEditorDialog } from './TextEditorDialog';
 export { withManifestId } from './withManifestId';
 export {
   manifestConfig,